This research consists of an eye-tracking study examining the efficacy of eye gaze indexing (EGIX) in manipulating viewer eye gaze and enhancing second language (L2) fingerspelling comprehension in American Sign Language (ASL) through a controlled laboratory experiment. The study consisted of two groups and two conditions, EGIX+/EGIX- to test the…

The comprehension of signed language requires linguistic and visual-spatial processing, such as perspective-taking for correctly interpreting the layout of a spatial scene. However, little is known about how adult second-language (L2) learners process visual-spatial constructions in a signed language that they are studying, including which angles…

Limited language experience in childhood is common among deaf individuals, which prior research has shown to lead to low levels of language processing. Although basic structures such as word order have been found to be resilient to conditions of sparse language input in early life, whether they are robust to conditions of extreme language delay is…

As spatial languages, sign languages rely on spatial cognitive processes that are not involved for spoken languages. Interlocutors have different visual perspectives of the signer's hands requiring a mental transformation for successful communication about spatial scenes. It is unknown whether visual-spatial perspective-taking (VSPT) or mental…

The auditory scaffolding hypothesis states that early experience with sound underpins the development of domain-general sequence processing abilities, supported by studies observing impaired sequence processing in deaf or hard-of-hearing (DHH) children. To test this hypothesis, we administered a sequence processing task to 77 DHH children who use…

In ASL spatial classifier expressions, the location of the hands in signing space depicts the relative position of described objects. When objects are physically present, the arrangement of the hands maps to the observed position of objects in the world (Shared Space). For non-present objects, interlocutors must perform a mental transformation to…

Signing systems that attempted to represent spoken language via manual signs -- some invented, and some borrowed from natural sign languages -- have historically been used in classrooms with deaf children. However, despite decades of research and use of these systems in the classroom, there is little evidence supporting their educational…

Language knowledge, age of acquisition (AoA), and stimulus intelligibility all affect gaze behavior for reading print, but it is unknown how these factors affect "sign-watching" among signers. This study investigated how these factors affect gaze behavior during sign language comprehension in 52 adult signers who acquired American Sign…

Whether to use spoken English for the instruction of American Sign Language (ASL) is a pedagogical debate for those teaching hearing second language learners. Previous investigations have found the use of learners' first language to be beneficial for vocabulary acquisition. Studies on sign languages, however, have found that a class taught…

When children interpret spoken language in real time, linguistic information drives rapid shifts in visual attention to objects in the visual world. This language-vision interaction can provide insights into children's developing efficiency in language comprehension. But how does language influence visual attention when the linguistic signal and…

Native speakers of English are sensitive to the likelihood that a verb will appear in a specific subcategorization frame, known as "verb bias." Readers rely on verb bias to help them resolve temporary ambiguity in sentence comprehension. We investigate whether deaf sign-print bilinguals who have acquired English syntactic knowledge…

The American Sign Language Comprehension Test (ASL-CT) is a 30-item multiple-choice test that measures ASL receptive skills and is administered through a website. This article describes the development and psychometric properties of the test based on a sample of 80 college students including deaf native signers, hearing native signers, deaf…

This article describes and evaluates one residential school for the deaf and hard of hearing, Eastern North Carolina School for the Deaf (ENCSD), and their experience in implementing the Fairview Learning program. The program consists of five components (Schimmel & Edwards, 2003). Two of the components--phonemic awareness and literature-based…

Bilinguals have been shown to activate their two languages in parallel, and this process can often be attributed to overlap in input between the two languages. The present study examines whether two languages that do not overlap in input structure, and that have distinct phonological systems, such as American Sign Language (ASL) and English, are…

The purpose of this study was to determine if the frequent use of a targeted, computer software grammar instruction program, used as an individualized classroom activity, would influence the comprehension of morphosyntax structures (determiners, tense, and complementizers) in deaf/hard-of-hearing (DHH) participants who use American Sign Language…